5G Wireless Backhaul Node Access With Mode Signaling

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Solution Overview

Problem

The lack of a specified startup operation process for 5G wireless backhaul nodes leads to decreased efficiency in accessing the network, as existing methods do not account for the diverse characteristics of these nodes, impacting transmission rate and latency requirements.

Innovation Solution

The first wireless backhaul node transmits identity and operating mode information to the donor base station, enabling the home donor base station to select a suitable core network node for processing, thus facilitating a proper initialization and configuration for continuous high-rate transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a generic access procedure is used for wireless backhaul nodes, then the access process can be initiated, but the access efficiency deteriorates due to inability to handle diverse node characteristics

Engineering Contradiction:
Improveaccess efficiencyVSAvoidhandling of diverse node characteristics
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The wireless backhaul node transmits identity information and operating mode information to the donor base station before the actual access procedure. This preliminary transmission of characteristic data enables the donor base station to prepare appropriate configuration parameters and select suitable core network nodes in advance, avoiding inefficiencies during the main access process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces operating mode information as a new parameter that characterizes different types of wireless backhaul nodes (e.g., L2 mode, L3 mode, integrated access and backhaul node). This parameter enables the network to differentiate between various node characteristics and apply customized access procedures and configuration parameters accordingly, thereby improving access efficiency for each node type.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If startup operation process is not specified for 5G wireless backhaul nodes, then device complexity is reduced, but access efficiency deteriorates

Engineering Contradiction:
Improveaccess efficiencyVSAvoidstartup operation process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent establishes a preliminary startup operation where the wireless backhaul node transmits its identity information and operating mode information to the donor base station before formal network access. This preliminary step enables the network side to prepare appropriate configuration parameters and select suitable core network nodes in advance, improving overall access efficiency without significantly increasing operational complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3780752B1Access method and device
Publication Date: 2025.09.24 DATANG MOBILE COMM EQUIP CO LTD
  • EP3780752B1 patent drawingFigure 1~2
  • EP3780752B1 patent drawingFigure 3
  • EP3780752B1 patent drawingFigure 4

AI summary

An access method and a device are provided. The access method is applied to a first wireless backhaul node and includes: determining a previous hop node of the first wireless backhaul node, the previous hop node being a home donor base station of the first wireless backhaul node or being a second wireless backhaul node; and transmitting first information to the home donor base station directly or transmitting the first information to the home donor base station via the second wireless backhaul node.